// Copyright 2019 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package com.google.android.datatransport.runtime;

import org.junit.rules.TestRule;
import org.junit.runner.Description;
import org.junit.runners.model.Statement;

public final class TransportRuntimeRule implements TestRule {
  private TransportRuntimeComponent component;

  TransportRuntimeRule(TransportRuntimeComponent component) {
    this.component = component;
  }

  @Override
  public Statement apply(final Statement base, final Description description) {
    return new Statement() {
      @Override
      public void evaluate() throws Throwable {
        TransportRuntime.withInstance(
            component,
            () -> {
              try {
                base.evaluate();
              } catch (RuntimeException e) {
                throw e;
              } catch (Exception e) {
                throw e;
              } catch (Throwable throwable) {
                throw new Exception(throwable);
              } finally {
                component.close();
              }
              return null;
            });
      }
    };
  }
}
